<template>
	<view class="goods-detail" v-if="goods_info.goods_name">
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
			<swiper-item v-for="(item, i) in goods_info.pics" :key="i">
				<!-- <view class="swiper-item"></view> -->
				<image :src="item.pics_big" @click="preview(i)"></image>
			</swiper-item>
		</swiper>
		<!-- 商品信息区域 -->
		<view class="goods-info-box">
			<!-- 商品价格 -->
			<view class="price">¥ {{ goods_info.goods_price }}</view>
			<!-- 商品主题区域 -->
			<view class="goods-info-body">
				<!-- 商品名称 -->
				<view class="goods-name">{{ goods_info.goods_name }}</view>
				<view class="favi">
					<uni-icons type="star" size="16" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!-- 运费 -->
			<view class="yf">快递: 免运费 {{ cart.length }}</view>
		</view>
		<!-- 商品详情信息 rech-text -->
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		<!-- 底部导航购物车 -->
		<view class="goods-nav">
			<!-- fill控制右侧按钮样式 options左侧按钮配置项 buttonGroup右侧按钮配置项 -->
			<!-- click左侧按钮点击事件触发 -->
			<!-- buttonClick右侧按钮点击事件 -->
			<uni-goods-nav :buttonGroup="buttonGroup" :options="options" @click="onClick" @buttonClick="buttonClick"></uni-goods-nav>
		</view>
	</view>
</template>

<script>
import { mapState, mapMutations, mapGetters } from 'vuex';
// 导入自己封装的 mixin 模块
import badgeMix from '@/mixins/tabbar-badge.js'
export default {
	mixins:[badgeMix],
	data() {
		return {
			goods_info: {},
			// 左侧按钮组的配置对象
			options: [
				{
					icon: 'shop',
					text: '店铺'
				},
				{
					icon: 'cart',
					text: '购物车',
					info: 2
				}
			],
			// 右侧按钮组的配置对象
			buttonGroup: [
				{
					text: '加入购物车',
					backgroundColor: '#ff0000',
					color: '#fff'
					// border-radius: 20px;
				},
				{
					text: '立即购买',
					backgroundColor: '#ffa200',
					color: '#fff'
				}
			]
		};
	},
	onLoad(options) {
		console.log(options);
		const goods_id = options.goods_id;
		this.getGoodsDetail(goods_id);
	},
	computed: {
		...mapState('m_cart', ['cart']),
		// 把 m_cart 模块中名称为 total 的 getter 映射到当前页面中使用
		...mapGetters('m_cart', ['total'])
	},
	watch: {
		
		// total: {
		// 	handle(newval) {
		// 		const findResult = this.options.forEach(x => {
		// 			x.text === '购物车';
		// 		});
		// 		if (findResult) {
		// 			findResult.info = newval;
		// 		}
		// 	},
		// 	immediate: true
		// }
		   // 定义 total 侦听器，指向一个配置对象
		   total: {
		      // handler 属性用来定义侦听器的 function 处理函数
		      handler(newVal) {
		         const findResult = this.options.find(x => x.text === '购物车')
		         if (findResult) {
		            findResult.info = newVal
		         }
		      },
		      // immediate 属性用来声明此侦听器，是否在页面初次加载完毕后立即调用
		      immediate: true
		   }
	},
	onShow() {
		// this.setBadge()
	},
	methods: {
		// 把 m_cart 模块中的 addToCart 方法映射到当前页面使用
		...mapMutations('m_cart', ['addToCart']),
		async getGoodsDetail(goods_id) {
			const { data: res } = await uni.$http.get('/api/public/v1/goods/detail', { goods_id });
			// console.log('res',res);
			if (res.meta.status !== 200) {
				this.goods_info = {};
				return uni.$showMsg();
			}
			// 使用字符串的 replace() 方法，为 img 标签添加行内的 style 样式，从而解决图片底部空白间隙的问题
			// res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ');
			// 使用字符串的 replace() 方法，将 webp 的后缀名替换为 jpg 的后缀名
			res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp/g, 'jpg');
			this.goods_info = res.message;
			console.log(this.goods_info);
		},
		preview(i) {
			uni.previewImage({
				current: i,
				urls: this.goods_info.pics.map(x => x.pics_big)
			});
		},
		onClick(e) {
			console.log(e);
			if (e.content.text === '购物车') {
				uni.switchTab({
					url: '/pages/cart/cart'
				});
			}
		},
		buttonClick(e) {
			// console.log(e.content.text);
			if (e.content.text === '加入购物车') {
				const goods = {
					goods_id: this.goods_info.goods_id, // 商品的Id
					goods_name: this.goods_info.goods_name, // 商品的名称
					goods_price: this.goods_info.goods_price, // 商品的价格
					goods_count: 1, // 商品的数量
					goods_small_logo: this.goods_info.goods_small_logo, // 商品的图片
					goods_state: true // 商品的勾选状态
				};
				this.addToCart(goods);
			}
		},
		// setBadge(){
		// 	uni.setTabBarBadge({
		// 		index:2,
		// 		text:this.total+''
		// 	})
		// }
	}
};
</script>

<style lang="scss">
.goods-detail {
	padding-bottom: 50px;
	.goods-nav {
		left: 0;
		bottom: 0;
		position: fixed;
		width: 100%;
	}
}
swiper {
	height: 750rpx;
	image {
		height: 100%;
		width: 100%;
	}
}
.goods-info-box {
	padding: 10px;
	padding-right: 0;
	.price {
		color: #c00000;
		margin: 10px 0;
		font-size: 18px;
	}
	.goods-info-body {
		display: flex;
		justify-content: space-between;
		.goods-name {
			padding-right: 10px;
			font-size: 13px;
		}
		.favi {
			width: 120px;
			font-size: 12px;
			display: flex;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			border-left: 1px solid #efefef;
			color: gray;
		}
	}
	.yf {
		margin: 10px 0;
		font-size: 12px;
		color: gray;
	}
}
</style>
